Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 401 [Rate centres in NPA 401] [Dial plan for NPA 401]

NXX: 758

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-758 A Providence RI   883K AHOI LLC 130   2026-05-18   
401-758 0 Providence RI   6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2026-06-11   
401-758 1 Providence RI   6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2026-06-11   
401-758 6 Providence RI   883K AHOI LLC 130   2026-05-18   
401-758 8 Providence RI   6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2026-06-11   
401-758 9 Providence RI   6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2026-06-11   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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